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Water Use, Stomatal Action, and Transpiration Unaffected by Atrazine 1
Author(s) -
Pallas J. E.,
Bertrand A. R.
Publication year - 1967
Publication title -
agronomy journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.752
H-Index - 131
eISSN - 1435-0645
pISSN - 0002-1962
DOI - 10.2134/agronj1967.00021962005900020004x
Subject(s) - agronomy , atrazine , transpiration , loam , environmental science , water use efficiency , water content , stomatal conductance , soil water , irrigation , pesticide , biology , soil science , photosynthesis , botany , geotechnical engineering , engineering
The effects of soil‐applied atrazine (2‐chloro‐4‐ethylamino‐6‐isopropylamino‐s‐triazine) on water use, stomatal activity, and yield of a hybrid and an open‐pollinated variety of corn were studied in the field. The studies were conducted in Cecil sandy loam soil using two moisture regimes, irrigated and simulated drought (plastic‐covered soil). Irrigated corn had significantly higher yields, lower water use efficiency, and higher stomatal activity than the nonirrigated corn. The hybrid yielded more and was a more efficient user of water than the open‐pollinated variety. Atrazine did not significantly affect yield, water use efficiency, or stomatal activity of corn under the experimental conditions.